fracture micro-appearance 断口微观形貌
By SEM the micro appearance of main fracture conformed to characteristics of flake fracture.
通过SEM观察，可知主断口微观形貌符合白点断口特征。
This paper analyzes the fracture appearance, microscopic structure, chemical composition and micro-hardness of the bright ghost structure.
本文对亮条的断口特征、金相组织、化学成分和显微硬度进行了分析。
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